It's a 13m long embroidery of the charter's Wikipedia page, complete with immaculate blue 'links', 'references' and beautifully rendered images. At first, the idea seems bonkers — why make an instantly outdated replica of a webpage? But after the initial visual shock (it's huge; and, for those of us used to browsing Wikipedia on our phones, incredibly unwieldy, almost too large to comprehend), various brilliant threads of meaning and nuance unravel. It's a thought-provoking achievement.

Parker took a screenshot of the regularly updated and popular Wiki page on 15 June last year, the 799th anniversary of the famous 13th century treaty. After printing it onto 87 different sections of fabric, she sent the pieces off to 200 carefully chosen people to stitch the words, images and symbols.

"I liked the idea of grabbing this moment and immortalising it," she explained at the launch event. "Wikipedia is a kind of embroidery. It's very subjective and democratic, with many contributors. Anybody can add their bit."

"I've had letters from prisoners who said they'd been happy to be involved in something historical rather than sewing cushion covers," said Parker. She explained that many of them had never seen a Wikipedia page, as they have no internet access.

Other contributors were carefully selected for their connection to civil liberties and the law. Shami Chakrabarti stitched 'Charter of Liberties', Baroness Doreen Lawrence added 'justice', 'denial' and 'delay', while Lord Judge and Lady Judge filled in 'Habeas Corpus', which had been rejected by one of the many prisoners. Julian Assange embroidered the word 'freedom' in the Ecuadoran embassy in London, while Edward Snowden added 'liberty' from Moscow.

Look carefully and you can spot Guardian editor Alan Rusbridger's blood after he pricked his finger while working on his chosen phrase, 'contemporary political relevance'.

The creation is a remarkable thing: an ephemeral Wikipedia page about Magna Carta, an enduring cornerstone of our civil liberties, has been transformed into something beautiful, tangible, endlessly durable. There's something medieval in the media used, a throwback to the Bayeaux Tapestry, perhaps. And yet its instantly recognisable font and colour scheme anchors it firmly in the now. Will it, like its subject, be studied in 800 years' time?